基于LabVIEW的光纤激光器稳频系统设计  

Design of LabVIEW based fiber laser frequency stabilization system

作　　者：刘帆[1,2] 郭文阁[1,2] 刘丹丹[2,3] 阮军 高玉平[3] 张首刚[2,3] LIU Fan;GUO Wen-ge;LIU Dan-dan;RUAN Jun;GAO YU-ping;ZHANG Shou-gang(Xi′an Shiyou University,Xi′an 710065,China;Key Laboratory of Time Reference and Applications,Chinese Academy of Sciences,Xi′an 710600,China;National Time Service Center,Chinese Academy of Sciences,Xi′an 710600,China)

机构地区：[1]西安石油大学,陕西西安710065 [2]时间基准及应用重点实验室(中国科学院),陕西西安710600 [3]中国科学院国家授时中心,陕西西安710600

出　　处：《激光与红外》2024年第11期1681-1687,共7页Laser & Infrared

基　　金：西安石油大学创新与实践能力培养计划项目(No.YCS23113085);陕西省自然科学基础研究计划一般项目(面上)(No.2023-JC-YB-078)资助。

摘　　要：本文利用工控机、NI数据采集卡、外围光路搭建激光稳频硬件系统,以调制转移光谱技术为基础,使用LabVIEW FPGA开发了一套单频光纤激光器数字稳频控制软件。基于调制转移光谱产生的伺服控制信号,通过采集误差信号,经PI处理后控制压电陶瓷伸缩,将780nm的激光频率锁定在铷原子的超精细跃迁谱线上。Allan方差结果显示,短期稳定度为1.52×10^(-11)@10s;长期稳定度优于1.56×10^(-11)@100000s,可连续运行20天以上。该数字稳频软件利用图形化编程语言,大大节约开发周期,操作界面直观简洁,方便用户分析处理。已成功应用于铷87喷泉钟系统中,且该稳频系统具有通用性,可应用于原子干涉仪、激光陀螺仪等精密测量领域。In this paper,the laser frequency stabilization hardware system is built using an industrial computer,NI data acquisition card and peripheral optical path,and a set of digital frequency stabilization control software for single frequency fiber laser is developed using LabVIEW FPGA.Based on the servo control signal generated by the modulated transfer spectrum,the 780 nm laser frequency is locked to the ultrafine jump spectral line of rubidium atoms by acquiring the error signal and controlling the piezoelectric ceramic expansion and contraction after PI processing.Allan variance results demonstrate that a short term frequency stability precision of 1.52×10^(-11)@10 s,and the long term stability is better than 1.56×10(-11)@100000 s,with continuous operation for over 20 days.This digital frequency stabilization software employs a graphical programming language,which significantly reduces development cycles,presenting an intuitive and concise user interface for convenient analysis and processing.It has been successfully applied to the rubidium 87 fountain clock system and possesses versatility for applications in precision measurement fields such as atomic interferometers and laser gyroscopes.

关 键 词：单频光纤激光器 调制转移光谱 LabVIEW FPGA 数据采集卡 数字稳频 

分 类 号：TN249[电子电信—物理电子学] TN911.7